Kobold OMH-15 Manual de usuario

Operating Instructions

for

Screw-Type Volumetric Flow Meter

High Pressure Version

Model: OMH

OMH

page 2 OMH K02/1122

1. Contents

1.Contents ........................................................................................................ 2

2.Note .............................................................................................................. 3

3.Instrument Inspection .................................................................................... 3

4.Regulation Use ............................................................................................. 4

5.Operating Principle ........................................................................................ 4

6.General Information ...................................................................................... 4

7.Warranty ....................................................................................................... 5

8.Mechanical Connection ................................................................................. 6

9.Electrical Connection .................................................................................... 7

10.Start up ......................................................................................................... 8

11.Pressure bearing capacity ............................................................................. 9

12.Dismounting and Mounting ......................................................................... 15

13.Failure ......................................................................................................... 22

14.Maintenance ............................................................................................... 23

15.Technical Information .................................................................................. 23

16.Order Codes ............................................................................................... 25

17.Dimensions and weights ............................................................................. 26

18.Pressure loss diagram ................................................................................ 28

19.Disposal ...................................................................................................... 29

20.EU Declaration of conformance .................................................................. 30

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim

Tel.: +49(0)6192-2990

Fax: +49(0)6192-23398

E-Mail: [email protected]

Internet: www.kobold.com

OMH

OMH K02/1122 page 3

2. Note

Please read these operating instructions before unpacking and putting the unit

into operation. Follow the instructions precisely as described herein.

The instruction manuals on our website www.kobold.com are always for currently

manufactured version of our products. Due to technical changes, the instruction

manuals available online may not always correspond to the product version you

have purchased. If you need an instruction manual that corresponds to the

purchased product version, you can request it from us free of charge by email

([email protected]) in PDF format, specifying the relevant invoice number and

serial number. If you wish, the operating instructions can also be sent to you by

post in paper form against an applicable postage fee.

The devices are only to be used, maintained and serviced by persons familiar

with these operating instructions and in accordance with local regulations apply-

ing to Health & Safety and prevention of accidents.

When used in machines, the measuring unit should be used only when the

machines fulfil the EC-machine guidelines.

as per PED 2014/68/EU

In acc. with Article 4 Paragraph 3, "Sound Engineering Practice", of the

PED 2014/68/EU no CE mark.

Diagram 9, Pipe, Group 2 no dangerous fluids

3. Instrument Inspection

All Instruments are inspected before shipping and sent out in perfect condition.

Should damage to a device be visible, we recommend a thorough inspection of

the delivery packaging. In case of damage, please inform your parcel service /

forwarding agent immediately, since they are responsible for damages during

transit.

Scope of delivery:

The standard delivery includes:

 Measuring device type: Screw-Type Volumetric Flow Meter High Pressure

Version OMH (incl. pulse generator)

 measuring transducer (only with OMH-../45)

OMH

page 4 OMH K02/1122

4. Regulation Use

Any use of the OMH which exceeds the manufacturers specifications, may invali-

date its warranty. Therefore, any resulting damage is not the responsibility of the

manufacturer. The user assumes all risk for such usage.

5. Operating Principle

The measuring principle of the KOBOLD

screw-volumeter is positive displacement.

The fluid to be measured causes the

measuring spindles M to rotate. With each

rotation an exact volume is given. These

rotations are being transmitted to the display A

by the pole wheel P and pick up I.

At the display the volume can be shown in any

unit of measurement.

6. General Information

 lt is important that any staff concerned with the unit read the operation and

maintenance manual prior to start up of the unit.

 The user is responsible for taking all precautions outlined in this manual

 This screw-volumeter should not be operated outside of the data specifications

given on the type plate. Any deviations require confirmation from the supplier.

 It is not possible to put all the information you may require in the manual.

Should you require any special information, please contact us.

 Depending on the operating conditions, wear, corrosion or age of the unit, its

specified attributes may be affected. It is therefore essential that the unit is

periodically maintained. The user must replace all parts which would not

guarantee a longer operating life with trouble-free operation. If the unit

operates unusually or damage is observed, it is not allowed to continue

operation.

 Installations which could lead to personal injury and/or material failure should

be equipped with an alarm system and/or bypass. This system should be

checked regularly.

OMH

OMH K02/1122 page 5

7. Warranty

The warranty is according to our terms of delivery. Repairs during the guarantee

period must be carried out only by individuals authorised by us and in accordance

with our agreement and instructions.

OMH

page 6 OMH K02/1122

8. Mechanical Connection

Mounting position: any

Flow direction: flow direction: both directions are possible, preferable flow D

according to the identification plate.

Minimum pressure: on the outlet of the volumeter the pressure should be higher

than 0,1 bar. In no case the medium may run out free of the

volumeter

Unclean medium: filtration with max. 0,3 - 0,5 mm mesh width is requi

Foreign substance: the pipe system must be free from welding beads, scabs a.

s.o., as they can block the volumete

Over pressure valve: a blocked volumeter stops the complete flow of the medium,

therefor depending the application, an overpressure valve is

required.

Fastening: without tensions to prevent distortion of the volumeter pipe

thread connection.

Pipe thread connection: the thread length of the pipe may not be longer than the thread

length of the volumeter (reduction of the flow area resp.

damage of internal parts of flowmeter)

Manometer connections: should be approachable

thread: R 1/4")

Storing: incorrect storing can cause corrosion even seizing

Attention: When the volumeter or installations are damaged, medium could flow

out. To prevent consequential damage an appropriate alarm device should be

installed.

OMH

OMH K02/1122 page 7

9. Electrical Connection

The dry sleeve is mounted, adjusted and tested with the pick up inside as a whole

unit, by KOBOLD.

The pick-up insert, including milled nut and spring, are screwed into the dry

sleeve by the customer (see included data sheet).

Caution: The dry sleeve must be free of foreign substance. The

spring must be able to press the pick-up insert flush with the

frontside of the dry sleeve.

The free cable ends will be connected to a display unit according connection dia-

gram and technical data on the included data sheet.

Caution: The complete sensor unit (sensor, measuring transducer

and cable) should not be located in an area of high intensity

electromagnetic field, as may come from high voltage

transmissions, electric motors, frequency converters etc,: this

could cause measuring errors or even destruction of the sensor

system.

Even though the pipe-system is filled the pick-up insert of

the pick-up can be changed without regulating a new

distance to the pole wheel.

Exchange pick-up insert E by opening milled nut R.

Caution: Dry sleeve G must not turn!

OM-…/44

OM-…/45

Further details about the pulse generators can be found in the additional

instructions: "Operating instructions for pulse generators for the OM series...

Type: /43../44../45"

OM-../43

OM-../45

OM-../44

OMH

page 8 OMH K02/1122

10. Start up

Technical data on the identification plate and on the attached leaflets must be

taken into consideration.

Venting: The system must be free of air (affects the accuracy)

OMH

OMH K02/1122 page 9

11. Pressure bearing capacity

Pressure bearing capacity OMH 15

A Short-term operation

B Continuous operation

C Pressure loss

D Flow rate

E Qnenn

The values apply for lubricating liquids at temperature up to 120 °C. Abrasive and

aggressive liquids reduce the service file.

OMH

page 10 OMH K02/1122

Pressure bearing capacity OMH 20

A Short-term operation

B Continuous operation

C Pressure loss

D Flow rate

E Qnenn

The values apply for lubricating liquids at temperature up to 120 °C. Abrasive and

aggressive liquids reduce the service file.

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